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| Abbe Refractometers DR-M Series |
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The Model DR-M Series Abbe Refractometers, featuring multiple wavelengths and automatic Abbe Number measurement are the first instruments of their kind for the high-level Refractive Index analysis of liquids, glass, plastic, & film.
Easy to Use. Operation consists of placing a sample on the prism; inserting an interference filter in the light source; while looking through the eyepiece, the control knob is turned until the shadowline is centered in the crosshairs (see Eyepiece View); the reading is shown on the large LCD display. Units calibrate with water (Model DR-M2) or the included glass standard.
Professional Features. Large, menu-driven LCD display; primary & secondary prisms; color compensator
dial; large measurement dial; focusable eyepiece; desiccant case; drain nozzle.
Multiple Wavelengths. Measures at 589nm (vD) or 546nm (vE) with the two included interference
filters. Capable of measuring in the range of 450-1100nm with the use of optional interference filters. For testing above 680nm, the optional infrared Viewer is required. External halogen light source features digital readout, variable intensity, and adjustable positoning of the light guide.
Abbe Number Measurement. Automatic; digital readout of Abbe Number (vD & vE) in 4 easy steps. For vD, the included 589nm interference filter and the optional 486nm & 656nm interference
filters are used. For vE, the included 546nm interference and the optional 480nm & 644nm interference filters are used.
Digital Accuracy. High resolution and accuracy provides substantial precision for both liquid and solids testing. The digital display and simple operation both enhance overall precision - no analog scales to read.
Prism Temperature Control. Featuring 2 circulator nozzles for the primary prism and 2 for the secondary prism, The DR-M Series models can be connected to a circulating bath to accurately regulate prism temperature. The prism temperature is displayed on the LCD display. The effective temperature range is 5-50°C.
Glass, Plastic, & Film Testing. Transparent or translucent glass and plastic samples can be measured
with the use of the included contact liquid. Transparent or translucent film samples can be measured with the use of the included contact liquid and lighting glass. Note: The refractive index (nD) of the sample must be lower than that of the contact liquid. The included bromonapthalene contact liquid has a refractive index (nD) value of 1.6300; the included methylene iodide solution (Model DR-M4 only) has a refractive index (nD) value of 1.7400.
Double Refraction (Birefringence) Testing. With the optional polarizing eyepiece, the DR-M Series models can test samples exhibiting double refraction. |
Display |
Cross hairs in eyepiece view |
Refractive index or Abbe number (vd or ve) can be measured at different wavelengths ranging from 450 to 1,100nm. (For measurement at wavelengths ranging from 681 to 1,100nm, the optional Near Infrared Ray Viewer is required.)
The DR-M2, DR-M4 display measurement result of refractive index or Abbe number digitally on the LCD. Measurement can be achieved by matching the boundary line with the intersection point of the cross hairs. These refractometers are connectable with a digital printer (optional). |
| DR-M2 / DR-M4 Series specifications |
| DR-M2 |
| Wavelength: |
450nm |
Refractive Index: |
1.3277 to 1.7379 |
| 589nm |
1.3000 to 1.7100 |
| 680nm |
1.2912 to 1.7011 |
| 1,100nm |
1.2746 to 1.6843 |
| DR-M4 |
| Wavelength: |
450nm |
Refractive Index: |
1.5164 to 1.9164 |
| 589nm |
1.4700 to 1.8700 |
| 680nm |
1.4558 to 1.8557 |
| 1,100nm |
1.4304 to 1.8303 |
| Minimum Indication: |
0.0001 in refractive index |
| 0.1 in Abbe number |
| Measurement Accuracy: |
±0.0002 in refractive index (with the attached test piece at 589nm) |
| Wavelength Range: |
From 450 to 1,100nm (with interference filters) (For measurement at wavelengths ranging from 681 to 1,100nm, the Near Infrared Ray Viewer (optional) is required) |
| Measurement Temperature Range: |
5 to 50°C |
| Output Terminal: |
For printer (optional) |
| Power Supply: |
AC100 to 240V 50/60Hz |
| Size and Weight: |
Refractometer |
13 x 29 x 31cm |
6.0kg |
| Light source unit |
15 x 33 x 11cm |
3.0kg |
| Optional Accessory: |
Near Infrared Ray Viewer |
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Prices subject to change  Prices listed in US dollars for domestic shipments within US, Canada, & Mexico only Export orders require quotations - click here for a quote For more info call us 1-800-762-2478 or 954-946-9454. |
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| Item Number |
Item |
Prices |
| RE-1410 |
DR-M2, Refractive index, 1.3000-1.7100 450nm-680nm (681nm-1100nm option)Refractometer |
$15,000.00 |
| RE-1414 |
DR-M4, Refractive Index, 1.4700-1.8700 450nm-680nm (681nm-1100nm option) Refractometer |
15,000.00 |
| RE-9119 |
Near Infrared Ray Viewer (Optional Accessory) |
P.O.R. |
Shown with Near Infrared Ray Viewer |
Refractive index or Abbe number (vd or ve) can be measured at different wavelengths ranging
from 450 to 1,550nm. These refractometers digitally display measurement result of refractive index or Abbe number on the LCD.
Measurement can be achieved by matching the boundary line with the intersection point of the cross hairs. They are connectable with a digital printer (optional). |
| DR-M2 / DR-M4 Series specifications |
| DR-M2 |
| Wavelength: |
450nm |
Refractive Index: |
1.3277 to 1.7379 |
| 589nm |
1.3000 to 1.7100 |
| 680nm |
1.2912 to 1.7011 |
| 1,100nm |
1.2746 to 1.6843 |
| 1,550nm |
1.2594 to 1.6690 |
| DR-M4 |
| Wavelength: |
450nm |
Refractive Index: |
1.5164 to 1.9164 |
| 589nm |
1.4700 to 1.8700 |
| 680nm |
1.4558 to 1.8557 |
| 1,100nm |
1.4304 to 1.8303 |
| 1,550nm |
1.4215 to 1.8214 |
| Minimum Indication: |
0.0001 in refractive index |
| 0.1 in Abbe number |
| Measurement Accuracy: |
±0.0002 in refractive index (with the attached test piece at 589nm) |
| Wavelength Range: |
From 450 to 1,550nm (with interference filters) |
| Measurement Temperature Range: |
5 to 50°C |
| Output Terminal: |
For digital printer (optional) |
| Power Supply: |
AC100 to 240V 50/60Hz |
| Size and Weight: |
Refractometer |
13 x 29 x 31cm |
6.0kg |
| Light source unit |
15 x 33 x 11cm |
3.0kg |
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| Prices subject to change Prices listed in US dollars for domestic shipments within US, Canada, & Mexico only Export orders require quotations - click here for a quote For more info call us 1-800-762-2478 or 954-946-9454. |
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| Item Number |
Item |
Prices |
| RE-1412 |
DR-M2/1550, Refractive index, 1.3000-1.7100 450nm-1550nm w/Infrared Viewer Refractometer |
$19,850.00 |
| RE-1415 |
DR-M4/1550, Refractive Index, 1.4700-1.8700 450nm-1550nm w/Infrared Viewer Refractometer |
19,850.00 |
| RE-3011 |
Printer for DR-M2, DR-M4, DR-M2/1550, DR-M4/1550 |
1,245.00 |
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| Each model refractometer comes with the following: |
| DR-M2 Multi-wavelength Abbe Refractometer |
- DR-M2 main unit
- Light source unit
- AC power cable
- Light stand
- Light guide
- Allen wrench for detaching/attaching prism
- Test piece (nD1.516) (for practicing solid matter measurement)
- Test report
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- Contact liquid (monobromonaphthalene, 4 ml) (for practicing solid matter measurement)
- Lighting glass for film measurement
- Interference filter, 589 nm and 546 nm
- Tube band
- Spare bulb
- Instructions manual
- Inspection certificate
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| DR-M2 Multi-wavelength Abbe Refractometer |
- DR-M4 main unit
- Light source unit
- AC power cable
- Light stand
- Light guide
- Allen wrench for detaching/attaching prism
- Test piece (nD1.62) (for setting reference point)
- Contact liquid (monobromonaphthalene, 4 ml) (for setting reference point)
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- Contact liquid (metlylene iodide containing sulphur solution, 4 ml) (for practicing solid matter measurement)
- Lighting glass for film measurement
- Interference filter, 589 nm and 546 nm
- Tube band
- Spare bulb
- Instructions manual
- Inspection certificate
- Test report
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| DR-M2/1550 Multi-wavelength Abbe Refractometer |
- DR-M2/1550 main unit
- Power supply unit
- AC power cable
- Monochromatic light source device
- Near infrared ray viewer
- Mounting adapter
- Screw for mounting adapter
- Interference filter, 589 nm
- Interference filter frame for 589 nm
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- Interference filter frame for registration
- Lighting glass for film measurement
- Allen wrench for detaching/attaching prism
- Test piece (nD1.516)
- Contact liquid (monobromonaphthalene, 4 ml)
- Tube band
- Instructions manual
- Inspection certificate
- Test report
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| DR-M4/1550 Multi-wavelength Abbe Refractometer |
- DR-M4/1550 main unit
- Power supply unit
- AC power cable
- Monochromatic light source device
- Near infrared ray viewer
- Mounting adapter
- Screw for mounting adapter
- Interference filter, 589 nm
- Interference filter frame for 589 nm
- Interference filter frame for registration
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- Allen wrench
- Lighting glass for film measurement
- Test piece (nD1.62)(for setting reference point)
- Contact liquid (monobromonaphthalene, 4 ml)
- Contact liquid (metlylene iodide containing sulphur solution, 4 ml)
- Tube band
- Instructions manual
- Inspection certificate
- Test report
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